An Introduction to Modern Genetics

AABB allelomorphs alternative anaphase animals autosomes bivalents breeding cells centromere characters chiasma chiasmata chromatids chromo chromomeres chromosome number coiled colour complete cross crossing-over cytological cytoplasm Darlington depends developmental differentiation diploid division dominant dose double Drosophila Drosophila melanogaster effect environmental evidence evolution evolutionary example fact factors fertilization formed frequency gametes gametophytes gamophase genes genetic genotype give Goldschmidt groups Haldane haploid heterozygote heterozygous homologous homozygous hybrids hypothesis inbreeding individuals inheritance instance intersexes known male and female mechanism meiosis meiotic melanogaster metaphase mitosis Muller mutation natural selection normal nucleus occur offspring pairing parthenogenesis pattern phenotypic pigment plants polyploid population possible probably produced prophase races reaction recessive regions segregation sex determination sex factors sexuality shown similar single species sperm spiral stage substance tetraploid theory time-effect curve Timofeeff-Ressovsky tion tissue translocation triploid trisomic types usually variation wild-type X chromosome zygophase zygote zygotene